Arrays
A A named storage location. The value of a variable can change can only store one value. If you need to store multiple values you will need to use an A set of data values of the same type, stored in a sequence in a computer program. Also known as a list. .
An array is a set of values of the same The format in which a variable or constant holds data, such as ‘integer’ or ‘string’. stored under one identifier. When arrays are created, the program needs to know their size. It needs to know how many elements you want to store.
When an array or any variable is created in a program this is called Create an empty variable with a specific data type, ready for use..
Example:
fruit = ['Banana', 'Apple', 'Pear', 'Lemon']Each element in an array refers to a specific memory location. We access the elements in an array using the A data structure in a database that groups a set of records associated with a keyword..
Note: Computers count from zero, so the first number in the array is always counted as 0. The last element in an array with n elements will have the index n-1. If an array has 10 elements then the last number will be 9 (0-9).
Did you know? Arrays in Python
Arrays in Python differ from other programming languages as it uses lists instead of arrays. Python 'lists' are more flexible than arrays as they can contain different data types and their length can vary in size.
It is often convenient to use a list where you do not know what the data type or length of your list will be. However, arrays are a more direct way of accessing data in memory so they are much faster and more efficient.
